A threaded swing check valve is a threaded valve that automatically prevents the backflow of fluid. The disc of the check valve opens under the action of fluid pressure, and the fluid flows from the inlet side to the outlet side.
Features
1）The swing check valve has reasonable structure, reliable sealing, small flow resistance and excellent performance.
2) Good scratch resistance and long service life.
3) Various piping flange standards and sealing surface types can be used to meet the needs of various working conditions.
4) The valve disc rotates around the pin outside the valve seat to reduce the violent impact when closing.
5) The connection between the pin shaft and the valve disc adopts a built-in structure, there is no external leakage point, and the use is more reliable.
6) The valve is threaded, small in structure, light in weight, and easy to install.
Overview
A threaded swing check valve is a threaded valve that automatically prevents the backflow of fluid. The disc of the check valve opens under the action of fluid pressure, and the fluid flows from the inlet side to the outlet side. When the pressure on the inlet side is lower than that on the outlet side, the valve disc will automatically close under the action of fluid pressure difference, gravity and other factors to prevent the fluid from flowing back.
According to the standard
1) Design and manufacture standard: JB/T18464-2008
2) Structure length standard: GB/T12221-2005
3）Pressure test standard: GB/T13927-2008
Main technical parameters
| Nominal pressure (Mpa) | Strength test MPa | Seal test MPa | Applicable temperature (℃) | Applicable medium |
| 1 | 1.5 | 1.1 | ≤150℃ | water, oil, gas, etc. |
| 1.6 | 2.4 | 1.76 |
Main parts material
| Part Name | Material |
| Body | copper alloy |
| Bonnet | copper alloy |
| Seal ring | PTFE |
